A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media

The effects of combinations of reduced water activity (aw from 0.97 to 0.93), pH (3, 4, 5, and 6) and addition of potassium sorbate (0, 100, 500, and 1,000 ppm) on the growth of one strain of Saccharomyces cerevisiae in laboratory medium were studied. The minimal aw for growth inhibition in the abse...

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Autores principales: CERRUTTI, P., ALZAMORA, S.M., CHIRIFE, J.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00221147_v55_n3_p837_CERRUTTI
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00221147_v55_n3_p837_CERRUTTI2023-10-03T14:27:02Z A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media CERRUTTI, P. ALZAMORA, S.M. CHIRIFE, J. The effects of combinations of reduced water activity (aw from 0.97 to 0.93), pH (3, 4, 5, and 6) and addition of potassium sorbate (0, 100, 500, and 1,000 ppm) on the growth of one strain of Saccharomyces cerevisiae in laboratory medium were studied. The minimal aw for growth inhibition in the absence of sorbate and in the range of optimal pH was 0.89. Various combinations of aw, pH and sorbate concentration prevented growth of the yeast at aw values above 0.89. For example, at v = 0.93, addition of 100 ppm sorbate at pH = 4.0 resulted in inhibition; at aw= 0.97 and same pH (4.0), 500 ppm of sorbate were necessary. The combined effects of the above parameters on generation time, maximum population, and lag time of the cells were also determined. Copyright © 1990, Wiley Blackwell. All rights reserved Fil:CERRUTTI, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:ALZAMORA, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00221147_v55_n3_p837_CERRUTTI
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The effects of combinations of reduced water activity (aw from 0.97 to 0.93), pH (3, 4, 5, and 6) and addition of potassium sorbate (0, 100, 500, and 1,000 ppm) on the growth of one strain of Saccharomyces cerevisiae in laboratory medium were studied. The minimal aw for growth inhibition in the absence of sorbate and in the range of optimal pH was 0.89. Various combinations of aw, pH and sorbate concentration prevented growth of the yeast at aw values above 0.89. For example, at v = 0.93, addition of 100 ppm sorbate at pH = 4.0 resulted in inhibition; at aw= 0.97 and same pH (4.0), 500 ppm of sorbate were necessary. The combined effects of the above parameters on generation time, maximum population, and lag time of the cells were also determined. Copyright © 1990, Wiley Blackwell. All rights reserved
format JOUR
author CERRUTTI, P.
ALZAMORA, S.M.
CHIRIFE, J.
spellingShingle CERRUTTI, P.
ALZAMORA, S.M.
CHIRIFE, J.
A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
author_facet CERRUTTI, P.
ALZAMORA, S.M.
CHIRIFE, J.
author_sort CERRUTTI, P.
title A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
title_short A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
title_full A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
title_fullStr A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
title_full_unstemmed A Multi‐parameter Approach to Control the Growth of Saccharomyces cerevisiae in Laboratory Media
title_sort multi‐parameter approach to control the growth of saccharomyces cerevisiae in laboratory media
url http://hdl.handle.net/20.500.12110/paper_00221147_v55_n3_p837_CERRUTTI
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AT alzamorasm multiparameterapproachtocontrolthegrowthofsaccharomycescerevisiaeinlaboratorymedia
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